模拟器的新 Flutter 应用程序构建失败，权限被拒绝

Question

当我尝试 flutter run 一个新创建的颤振应用程序时，构建失败并出现以下错误。该计算机在一年前用于 Flutter 开发，我怀疑某处存在一些不规则的配置导致此错误。这几天我一直在为此苦苦挣扎，如果有任何帮助，我将不胜感激。

复制步骤

1. flutter create my_app
2. cd my_app
3. flutter run

终端输出：

app/Frameworks/App.framework/App: signed bundle with Mach-O universal
    (x86_64 arm64) [io.flutter.flutter.app]
    /Users/user/Desktop/projects/myApp/build/ios/Debug-iphonesimulator/Runner.
    app/Frameworks/Flutter.framework/Flutter: replacing existing signature
    /Users/user/Desktop/projects/myApp/build/ios/Debug-iphonesimulator/Runner.
    app/Frameworks/Flutter.framework/Flutter: Permission denied
    Command PhaseScriptExecution failed with a nonzero exit code
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Constructing build description

Could not build the application for the simulator.
Error launching application on iPhone 11.

我试过了：

• 卸载并重新安装 Xcode
• 卸载并重新安装 Flutter
• 从 Xcode 运行
• 删除 pod/podfile 并重新安装
• 重新启动计算机
• flutter clean
• 创建新应用
• 检查是否符合所有必需的 Flutter“Get started”指令
• 从 Xcode 运行
• 将工作区切换到旧版构建系统
• Locking & unlocking login in Keychain Access
• 使用 Finder 授予项目文件夹和所有随附项目的读/写权限，并在文件上运行 chmod +x

flutter doctor -v 输出：

[✓] Flutter (Channel stable, 1.20.3, on Mac OS X 10.15.6 19G2021, locale en-GB)
    • Flutter version 1.20.3 at /usr/local/Cellar/flutter/sdk
    • Framework revision 216dee60c0 (6 days ago), 2020-09-01 12:24:47 -0700
    • Engine revision d1bc06f032
    • Dart version 2.9.2

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at /Users/user/Library/Android/sdk
    • Platform android-30, build-tools 30.0.2
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.7)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.7, Build version 11E801a
    • CocoaPods version 1.9.3

[!] Android Studio (version 4.0)
    • Android Studio at /Applications/Android Studio.app/Contents
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[✓] VS Code (version 1.48.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.14.0

[✓] Connected device (1 available)
    • iPhone 11 (mobile) • 034B59B3-8929-4997-B7A1-53E32D065347 • ios • com.apple.CoreSimulator.SimRuntime.iOS-13-7 (simulator)

! Doctor found issues in 1 category.

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更新：I have opened an issue in the Flutter Github repo。

Answer 1

通过以下步骤，我终于能够解决这个问题并在 iOS 模拟器上运行 Flutter 演示应用：

1. flutter version v1.11.0（降级到早期版本的 Flutter）
2. flutter channel stable
3. flutter upgrade
4. flutter doctor
5. flutter create test_app
6. cd test_app
7. flutter run

Answer 2

基于this 问题，似乎与xcode_backend.sh 文件有关，使一些Flutter 文件只读，检查问题和this 问题，可能会帮助您解决它，祝你好运。